<input type="button" value="save" name="codeSave" id="codeSave">
<p>Select a theme: <select id="selectThemes">
    <option selected>default</option>
    <option>night</option>
    <option>monokai</option>
    <option>neat</option>
    <option>elegant</option>
    <option>cobalt</option>
    <option>eclipse</option>
    <option>rubyblue</option>
</select>
</p>
<textarea id="myTextArea-<?php echo $_POST['txid'] ?>" name="myTextArea-<?php echo $_POST['txid'] ?>"><?php echo $this->code; ?></textarea>
<span id="filepath"><?php echo $this->file ?></span>